Perhaps you should try some spelling variations:
tieu tinh » trieu tinh, tieu trinh, lieu tinh
hanh tang » hanh trang, anh tang, hanh mang
luan dang » luan nang, luan dong, luan tang
luan danh » luan thanh, luan van, luan nang
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cao » toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu tinh - hanh tang ((luan dang) or (luan danh)) cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu tinh - hanh tang ((luan dang) OR (luan danh)) cong tac toan cao*.